问题
选择题
对于任何一个平衡体系,采用以下措施一定会使化学平衡发生移动的是[ ]
A.加入一种反应物
B.升高温度
C.对平衡体系增加压强
D.使用催化剂
答案
答案:B
对于任何一个平衡体系,采用以下措施一定会使化学平衡发生移动的是[ ]
A.加入一种反应物
B.升高温度
C.对平衡体系增加压强
D.使用催化剂
答案:B
Mr Green is our foreign teacher . He is a good teacher . He often helps us a lot .And he is nice to every student . His lessons are very interesting . We usually have fun in his lessons . We all like him . He is a tall and strong man . He says he is 40 years old . But he looks very young . He comes from New York . Now he lives in Nanjing with his family . He has a daughter . She is a pretty girl . And she studies in our school ,Mr Green is very “in”. He can sing many English songs . We all like to listen to him singing . He also likes sports . He is in the school basketball team . Mr Green likes reading . We often borrow books from him . I think we are lucky(幸运)to have Mr Green to teach us .
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